CVE-2018-12556 is a medium-severity vulnerability affecting the yarnpkg website's install.sh script. It allows remote attackers to sign tampered Yarn release packages with their own arbitrary key because the signature verification routine does not properly pin to the legitimate Yarn release key. This flaw has a CVSS score of 5.9, indicating a network-based attack with high integrity impact, but requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2018-06-05CPE matchmatch criteria | cpe:2.3:a:yarnpkg:website:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.